Transport of Water
- Created by: Eleanor Izzard
- Created on: 10-12-12 22:15
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- Transport of Water
- Osmosis
- the net movement of water molecules from a high water potential to a low water potential through a partially permeable membrane
- occurs until water potential is the same on both sides of the membrane
- Solute - a solid that dissolves in a liquid
- Solvent - a liquid that dissolves solids
- Solution - a liquid containing dissolved solids
- Cells Response
- Animal Cells
- In pure water, water will move into the cell by osmosis
- Cell bursts open and become haemolysed
- Concentrated sugar solution, water will move out of the cell by osmosis
- Cell becomes crenated
- All -animal Camels -cells Like -lose Werewolf -water Cream-crenated When - water Growing - gained Hair-haemolysed
- In pure water, water will move into the cell by osmosis
- Plant Cells
- In pure water, water will move in via osmosis
- Cells becomes Turgid - cell wall prevents bursting
- In concentrated sugar solution, water will move out by osmosis
- Cell becomes Plasmolysed as membrane pulls away from wall
- Parrots -Plant Can -Cells Limp -lose Whilst -water Playing - Plasmolysed Games-gain With-water Turtles - Turgid
- In pure water, water will move in via osmosis
- Animal Cells
- Water potential
- measured in kiloPascals (kPa)
- Pure water has potential of 0kPa
- Lower water potential = negative value
- So the more negative the number, the more concentrated the solution
- Lower water potential = negative value
- Osmosis
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